बायो-गैस उत्पादन प्रक्रिया के बाद बचे हुए अवशेष का उपयोग मुख्य रूप से किस रूप में किया जाता है?

Mahatma Gandhi's last fast unto death in 1948 was primarily against which of the following?

What was the primary meaning of 'Swaraj' as popularized by Mahatma Gandhi during India's independence movement?

What was one major impact of India’s independence on its economy?